Development of a Three dimensional Skill-Analyzing System by means of "360 Degree Turning of a Motion Model" and Completion of a New Teaching Method Based upon It.

所有的身体运动，包括物理运动，都可以放入三维坐标中。近年来，随着个人计算机的迅速发展，图形的精度和运算速度提高，可以在显示器上绘制更复杂的3D图形。因此，为了使实验数据的收集更容易，分析更精确，通过引入“单点透视变换”和"运动模型360度旋转“，尝试开发一种新的技能分析系统。由于电子设备的发展，三维分析已经从棒状图片发展到表面模型，这极大地促进了体育领域的三维分析。本研究的创新之处在于，运动模型可以从任何方向旋转360度，这种观察方式已经被证明是有用的，特别是在那些认为形体美和有效动作很重要的运动中。运动可以分为两种模式：从一个地方到另一个地方的运动和在现场或小区域内的运动。我们从前者中选取“滑雪”和从后者中选取“高尔夫”作为典型案例，在此系统下进行了实验，并对我们收集的数据进行了分析，就该系统的应用而言，取得了相当的成功。

All the bodily motions, including physical motion, can be put into the three dimensional coordinates. Recent remarkable development of personal computers enabled more precise graphics and improvement of computing speed, which has made it possible to draw up more complicated 3D graphics on the display.That is why we authors, intending to make the gathering of experimental data easier and the analyzes more precise, tried to develop a new skill-analyzing system with the introduction of 'the single point perspective transformation' and ' 360 degree turning ofa motion model'. Thanks to the development of electronic equipment, 3D analyzes have now evolved form stick picture into surface models, which greatly contributed to the 3D analysis in the field of Athletics.The originality of this research consists in that a motion model can be turned around 360 degrees and its from any direction, and this way of observation has turned out to be use, especially in sports in which the beauty of from and effective movements are considered important. Motion can be classified into two patterns ; the movement from one place to another and that on the spot or in a small area. Picking up 'skiing' from the former and 'golf' from the latter as a model case, we experimented under this system with analyzing the data we gathered, and dould obtain a fair success as to the application of this system.